Wrestler-turned-actor Johnson, also known by his ring moniker The Rock, revealed he did not mind the rain.

"I love it. I lived here last year when we filmed Fast Six and I always love coming back to London," he said.

The 40-year-old, who is known as the franchise saver, plays Roadblock in this reinvented sequel.

"I love this franchise and have done since I was a kid. Not only that but I got a second shot to re-elevate the franchise. If I can come in and help in any way, I will do it."

Pryce - who has a dual role as the US president and villain Zartan - joked that British actors tended to be employed as baddies instead of their American counterparts because they were "cheap", although Stevenson said: "It takes a good actor to play bad."

Director Chu defended a scene in which London gets blown up, saying: "I realised every major city had been blown up except this one," to which Johnson added: "I told him not to."